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ECMAScript 2025 Finalized with Iterator Helpers, Set Methods, RegExp.escape, and More
ECMAScript 2025 introduces Iterator Helpers, Set methods, JSON modules, and more in its latest spec update approved by Ecma in June 2025.
Provides iCalendar (RFC5545) parsing as well as a convenient API for generating iCalendar data.
You can generate a single event:
var event = new icalendar.VEvent('cded25be-3d7a-45e2-b8fe-8d10c1f8e5a9');
event.setSummary("Test calendar event");
event.setDate(new Date(2011,11,1,17,0,0), new Date(2011,11,1,18,0,0));
event.toString();
Or create a collection of events:
var ical = new icalendar.iCalendar();
ical.addComponent(event);
var event2 = ical.addComponent('VEVENT');
event2.setSummary("Second test event");
event2.setDate(new Date(2011,11,5,12,0,0), 60*60); // Duration in seconds
Create a iCalendar collection from a string:
// data is a string containing RFC5545 data
var ical = icalendar.parse_calendar(data);
Access an array of the events defined within:
ical.events()
Several portions of the iCalendar spec remain unimplemented:
* HOURLY, MINUTELY, and SECONDLY recurrence are not implemented.
- Support for these is not currently planned, as they do not
seem to be found in actual use.
* BYHOUR, BYMINUTE, and BYSECOND modifiers are not implement as above.
* BYSETPOS
* WKST
- This could very likely become important
* BYWEEKNO
* BYYEARDAY
* RDATE is not yet implemented
* RECURRENCE-ID and multiple related VEVENTS are not currently supported
* Documentation is pretty weak
FAQs
RFC5545 iCalendar parser/generator
The npm package icalendar receives a total of 11,013 weekly downloads. As such, icalendar popularity was classified as popular.
We found that icalendar demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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